Elijah Price is a fictional character from the film series that includes Unbreakable and Split. He is portrayed by actor Samuel L. Jackson and is known for his unique physical condition, which makes his bones extremely fragile. This condition leads him to develop a deep interest in comic books and the concept of superheroes. In the story, Elijah adopts the alias Mr. Glass due to his brittle bones and his ability to manipulate events to reveal the existence of superhuman individuals. His character explores themes of identity, vulnerability, and the nature of good versus evil, making him a complex antagonist in the series.